JPH08298442A - Channel selection device - Google Patents

Abstract

PURPOSE: To select a desired channel in a short time by providing an operation section selecting a prescribed channel number each through the depression of buttons without increasing the buttons of the operation section. CONSTITUTION: A signal received from an antenna 2 is selected for its channel by a tuner 3 and outputted as a video signal P and an audio signal S by an intermediate frequency signal processing circuit 4. As channel selection channel number operation buttons 7, a forward button 8, a reverse button 9, a forward button 10, a ten-channel button 10, and a one-channel button 11 are provided. Through the operation of a microcomputer 5, every time the ten-channel button 10 is depressed shorter than a time T, channels are changed sequentially by ten channel, and every time the button 10 is depressed for the time T or over, channels are changed by 10 channels with the intervals of the time T. When the button 11 is depressed, channels are changed by one channel similarly. Then number the channels changed forward are given to a tuner 3 and a channel display section 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a channel tuning device having a tuner such as a television and a video, and more particularly to a channel tuning device having buttons for operating channels.

[0002]

2. Description of the Related Art At present, a channel selecting apparatus having a built-in tuner such as a television or a video is so widespread that it is difficult to consider a life without them.

The number of channels selected by these channel selection devices depends on the spread of satellite broadcasting (broadcast satellite broadcasting, communication satellite broadcasting, etc.) and cable broadcasting (CATV).
It tends to increase over the years.

Further, as the function of the channel selection device such as television and video has become sophisticated and various operations can be performed, the operation section is likely to be complicated, and it becomes difficult to use frequently used operations. Tend to be. In order to realize an easy-to-use and multifunctional operation unit, it is common practice to make operations that are frequently used easier to use than operations that are rarely used. The above-mentioned problems cannot be solved if the number of operations emphasized is increased, and therefore the operations to be emphasized must be carefully selected.

Here, the operation of the channel is one of the most frequently used operations even when looking at the entire operation of the television, and the frequency of use is not so low even in video and the like. Among them, since the operation of sequentially forwarding the channel numbers and the operation of reversing the channel numbers are important, a channel tuning device having two buttons, a button for sequentially forwarding the channel numbers and a button for backwardly feeding the channel numbers, has been conventionally used. There is. In the following, a button that sequentially feeds the channel numbers is called a forward button, and a button that reverses the channel numbers is called a backward button.

When these buttons are pressed, a microcomputer (hereinafter abbreviated as a microcomputer) determines a channel number to be newly selected from the channel number currently being viewed and the pressed button, and the channel number is selected. Data is sent to the tuner and channel display. As a result, the tuner selects the channel.

The operation of the microcomputer when operating these channel numbers will be described below with reference to the flowchart shown in FIG.

That is, in step 53 (hereinafter abbreviated as S53), the process waits until the button is pressed. S5
When the button is pressed in 3, it is determined whether the button is a forward button (S54).

If the pressed button is the forward button,
The channel number is incremented by 1, and the channel number data is sent to the tuner and the channel number display section (S
55, S56).

Next, a counter t for counting time is set to 0 (S57), and then t is increased while the forward feed button is continuously pressed, and waits for the button to be continuously pressed for the time T or longer. (S58, S59, S60).

In S60, when t becomes larger than T, the process returns to S55 to perform the processing when the button is continuously pressed. As a result, if the forward button is kept pressed, the channel numbers are forwarded one channel at a time interval T.

If it is detected in S58 that the forward button is not pressed, the process returns to S53 and waits until the next button is pressed.

In S54, if the pressed button is not the forward button, it is determined whether the pressed button is the reverse button (S61). If the pressed button is not the reverse button, the process returns to S53 and waits until the next button is pressed.

When the reverse feed button is pressed in S61,
The channel number is decremented by 1 and the channel number data is sent to the tuner and the channel number display section (S
62, S63).

Next, the counter t for measuring the time is set to 0 (S64), then t is increased while the reverse feed button is continuously pressed, and the button is continuously pressed for the time T or more. Wait (S65, S66, S67).

In S67, when t becomes larger than T, the process returns to S62, and the processing when the button is continuously pressed is performed. As a result, if the reverse feed button is held down, the channel number is fed back one channel at a time interval T.

If it is detected in S65 that the reverse button is not pressed, the process returns to S53 and waits until the next button is pressed.

By the operation of the microcomputer in this way, in the channel selection device having two buttons, a forward feed button and a reverse feed button, the channel number is
1 each time the forward button is pressed for less than a certain time T
The channels are sent in sequence, and if you press and hold for more than time T,
The channels are sequentially advanced one after another at intervals of time T. When the reverse feed button is pressed, the channel number is reversely fed instead of sequentially forwarding the channel number in the above operation.

[0019]

However, in the above channel selecting apparatus, if the number of the channel currently selected and the number of the channel to be selected next are different, the operation required for the channel selection is performed. And there is a problem that time increases.

For example, FIG. 9 shows an operation example in the case of selecting channel 55 after viewing channel 10, and then selecting channel 10.

That is, in the state where 10 channels are selected (operation step D1), when the forward button is pressed once, the channel number becomes 11 (operation step D1).
2).

When the forward button is pressed and then the button is pressed as it is, the channel number is increased by 1 at intervals of time T. The channel number stops increasing when you stop pressing the button shortly before the target channel number is reached. Here, it is assumed that the signal is stopped at channel 52 (operation step D3).

Then, the forward button is pressed three times to set the channel number to 55 (operation steps D4, D5, D
6).

Next, if the reverse button is pressed while channel 55 is selected, the channel number becomes 54. By continuing to press the button as it is, the channel number decreases by 1 at intervals of time T. When you stop pressing the button, the channel number stops decreasing. Here, it is assumed that it is stopped on channel 14 (operation step D
7).

Then, the reverse button is pressed four times to set the channel number to 10 (operation steps D8, D9, D1).
0, D11).

As described above, in the conventional channel selection device, the number of operations is large and the operation takes time. In particular, the required time is long in the above operation steps D3 and D7. If the time T is shortened in the flow chart of the microcomputer operation shown in FIG. 8, it becomes difficult to stop at a desired position when the number of channels continuously increases or decreases.
When trying to increase / decrease each channel, the number of channels is increased / decreased all at once, which rather deteriorates the operability. Further, if the time T is set too short, it becomes difficult to watch the channel that is being increased or decreased on a television or the like, and it becomes impossible to analogize the channel number according to the contents of the broadcast and select the channel. Therefore, there is a limit in shortening the time T to shorten the operation time.

As described above, in the channel selection device having the button for operating the channel number, the operation and time required for the channel selection are increased as the currently selected channel and the next channel are separated. There is a problem of increase. The solution of this problem becomes more important as the number of channels increases.

The present invention has been made in view of the above problems, and an object of the present invention is to select an arbitrary channel in a short time without increasing the number of buttons of the operation unit, to have an operation unit that is easy to understand and operate. It is to provide a channel selection device capable of performing the above.

[0029]

According to a first aspect of the present invention, there is provided a channel selecting device having a button for sequentially feeding a channel number and a button for reversely feeding a channel number. When the button is pressed and held, the channel numbers are set in sequence by feeding multiple channels, and the channel number is set in reverse when the button is pressed and held. It is characterized by having means.

Further, the channel selecting apparatus according to the invention of claim 2 is characterized in that the number of the plurality of channels is 10.

According to a third aspect of the present invention, there is provided a channel selecting device having a plurality of buttons for operating a channel number, wherein the bands selected when the plurality of buttons are simultaneously pressed are changed. It is characterized in that it is provided with band switching means for switching to the band.

The channel selecting apparatus according to the invention of claim 4 is characterized in that, in the configuration of the invention of claim 3, the band switching means switches between the UHF band and the VHF band.

Further, in the channel selecting apparatus according to the invention of claim 5, in the channel selecting apparatus having a button for operating the channel number, a button for operating the tenth position of the channel number such as a ten-position forward button,
It has a button for operating the first digit of the channel number, such as a forward button for the first digit, which is provided independently of it, and when the button for operating the tenth digit of the channel number is pressed, the tenth digit of the channel number is pressed. To set the channel number, and when a button for operating the first digit of the channel number is pressed, a channel number setting means for changing the first digit of the channel number and setting the channel number is provided. I am trying.

[0034]

According to the structure of the invention of claim 1, in the channel selecting device, the channel number setting means sets the channel numbers by a plurality of channels if the forward button (button for sequentially forwarding the channel numbers) is continuously pressed. Set forward and set, and if the reverse button (the button that reverses the channel number) is pressed and held, the channel number will be set in reverse by multiple channels.

As a result, it is possible to reduce the time and operation required for the operation of selecting a channel, as compared with the case where the channel is continuously forwarded or reversely fed one channel at a time.

Further, when the channel numbers are continuously changed, the time and operation required for the operation can be reduced without shortening the time interval for changing the channel numbers. As a result, it is easy to stop the change of the channel at a desired position when the channel number is continuously changed, and when the number of each channel is increased or decreased, the number of channels is increased or decreased at once. Never.
Furthermore, it is easy to view the channel that is being increased or decreased on a television or the like, and the channel can be selected by analogizing the channel number according to the content of the broadcast.

Further, it is not necessary to increase the number of buttons for operating the channels.

Further, in the configuration of the invention of claim 2, in the configuration of the invention of claim 1, the number of channels that change when the forward feed button and the reverse feed button are continuously pressed is 10 channels each.

As a result, the channel number is changed by 10, so that only the number in the 10th decimal place is changed, and it is easy to predict the next changing channel number.

According to the third aspect of the present invention, when a plurality of channel operation buttons of the channel selection device are simultaneously pressed, the channel number setting means is a band different from the band currently being viewed. Select the channel of.

As a result, it is not necessary to separately provide a button for switching the band, and the operation section can be simplified.
In addition, when the operation of switching the band and the operation of changing the channel number are performed successively, the operation can be performed without releasing the button for operating the channel, so that the operability is improved.

In addition, the time and operation required for selecting a channel in a band different from the band of the channel currently being viewed can be reduced.

According to the structure of the invention of claim 4, in the structure of the invention of claim 3, the bands can be switched between the UHF band and the VHF band.

Since the UHF and VHF band channels are the most prevalent, band switching between the UHF and VHF bands occurs most frequently.

Therefore, if the bands to be switched are limited to the UHF band and the VHF band, it is possible to reduce the time and operation required for frequently switching between the bands.
Further, it is possible to reliably switch the band between the two without accidentally switching to another band.

According to the fifth aspect of the invention, when the button for operating the tenth place of the channel number is pressed, the tenth place of the channel number is set, for example, by sequentially advancing the tenth place of the channel number, and the first place of the channel number is set. When the button for operating is pressed, the channel number is set by, for example, advancing the first digit of the channel number.

As a result, the 1st and 10th channel numbers can be operated independently. Since the tenth position of the channel number can be changed, the time and operation required for channel selection can be reduced as compared with the conventional case where the channel number is continuously changed by one.

Further, as in the channel selecting apparatus according to the invention of claim 2, whether the first digit of the channel number changes or not
Whether the 0th position changes is not distinguished by the time of pressing the button, but by which of the independent buttons is pressed. Therefore, it is possible to operate without worrying about the time to press the button.

[0049]

【Example】

[Embodiment 1] FIGS. 1 and 7 show an embodiment of the present invention.
The explanation is based on the following.

The main part of the channel selection device 1 is shown in FIG.
As shown in (a), it is composed of an antenna 2, a tuner 3, an intermediate frequency signal processing circuit 4, a microcomputer 5 (channel number setting means or band switching means), a channel number display section 6 and a channel number operation button 7. There is.

The signal a input from the antenna 2 is VH
Channels in the F (Very-High Frequency) band and UHF (Ultra-High Freq)
tuner 3 that can tune in to the (uency) band channel
Is converted into an intermediate frequency signal if consisting of video and audio signals of the selected channel. The intermediate frequency signal if is output by the intermediate frequency signal processing circuit 4 as a video signal p and an audio signal s.

The microcomputer 5 (hereinafter abbreviated as the microcomputer 5) sends the channel selection data b of the channel designated by the channel number operation button 7 to the tuner 3, and the tuner 3 selects the channel. Also, the tuning data c for displaying the selected channel
Is sent to the channel number display unit 6, and the channel number display unit 6 displays the selected channel number.

In this embodiment, as the channel number operation button 7, a forward feed button 8 (a button that feeds the channel numbers forward) and a reverse feed button 9 as shown in FIG. 7B.
(A button that reverses the channel number).

The operation of the microcomputer 5 will be described below with reference to the flow chart shown in FIG.

That is, in step 1 (hereinafter abbreviated as S1), it is determined whether or not the button has been pressed. If the button has not been pressed, S1 is repeated until the button is pressed.

When the button is pressed in S1, it is determined whether or not the button is the forward button 8 (S2). If the button is not the forward button 8, the process proceeds to step (S10) described later.

If the pressed button is the forward button 8 in S2, the channel number is forwarded by one (S
3), the channel number data is sent to the tuner 3 and the channel number display section 6 (S4).

Next, the counter t is set to 0 to measure the time (S5), and then it is determined whether or not the forward feed button 8 is continuously pressed (S6). T is held down
Is incremented by 1 (S7), and t is a predetermined time T
It is checked whether or not it is larger (S8). When t is smaller than T, S6 and subsequent steps are repeated until the forward button 8 is continuously pressed for the time T or more.

When t becomes larger than T in S8, the channel number is forwarded by 10 (S9), and then S
Returning to step 4, the processing when the forward button 8 is continuously pressed is performed. As a result, when the forward button 8 is kept pressed, the channel number is changed to 10 at intervals of time T.
It is forwarded one by one.

When it is detected in S6 that the forward button 8 is not pressed, the process returns to S1 and waits until the next button is pressed.

In S2, if the pressed button is not the forward button 8, it is determined whether the pressed button is the reverse button 9 (S10). If the pressed button is not the reverse button 9, the process returns to S1 and waits until the next button is pressed.

When it is determined in S10 that the reverse button 9 has been pressed, the channel number is reversed by 1 (S11), and the channel number data is sent to the tuner 3 and the channel number display section 6 (S12). ).

Next, the counter t is set to 0 to measure the time (S13), and then it is determined whether or not the reverse feed button 9 is continuously pressed (S14). If the button is kept pressed, t is incremented by 1 (S15), and it is checked whether t is longer than a predetermined time T (S16). When t is smaller than T, S14 and subsequent steps are repeated until the reverse button 9
Wait until is pressed continuously for time T or more.

In S16, when t becomes larger than T, the channel number is reversely fed by 10 (S17), and then the process returns to S12 to perform the processing when the backward feed button 9 is continuously pressed. As a result, when the reverse feed button 9 is continuously pressed, the channel number is reverse feed by 10 at intervals of time T.

If it is detected in S14 that the reverse feed button 9 has not been pressed, the process returns to S1 and waits until the next button is pressed.

As the microcomputer 5 operates in this way, the channel number is shorter than the time T and the forward button 8 is pressed.
Each time is pressed, the channel is sequentially advanced. If the forward feed button 8 is continuously pressed for the time T or more, the time T
10 channels are sent in sequence at intervals of. When the reverse feed button 9 is pressed, the channel number is reversely fed instead of sequentially feeding the channel number in the above operation. As a result, when the currently selected channel and the channel to be selected next are distant from each other, it is possible to reduce the operation and time required for the channel selection as compared with the related art.

In addition, the number of channel number operation buttons has not increased compared to the conventional one. Naturally, the channel operation button section is as simple as the conventional one.

Next, the relationship between the button operation and the selected channel in this embodiment will be described with reference to the operation example shown in FIG. Here, for example, a case where 55 channels are selected while viewing 10 channels and then 10 channels are selected is taken as an example.

That is, in the state where channel 10 is selected (operation step A1), the forward button 8 is pressed 1
When it is pressed twice, the channel number becomes 11 (operation step A2).

Next, when the forward button 8 is pressed, the channel number changes to 12. If you keep pressing it, the channel number will be forwarded at intervals of time T. At that time, it will be forwarded by 10 instead of by 1 and will be forwarded by 2.
2.32 ... When the pressing of the forward button 8 is stopped, the channel numbers are not forwarded. Here, it is assumed that the process is stopped at channel 52 (operation step A3).

Then, the forward button 8 is pressed three times to set the channel number to the target value of 55 (operation step A4,
A5, A6).

Next, when the reverse button 9 is pressed while channel 55 is selected, the channel number becomes 54. If you keep pressing the button as it is, the channel number will be at intervals of time T, such as 44.34 ...
It is sent back by 10 channels at a time. When the reverse button 9 is stopped, the channel number will not be reversed. Here, it is assumed that the channel 14 is stopped (operation step A7).

Thereafter, the reverse feed button 9 is pressed four times to set the channel number to the target value of 10 (operation step A8,
A9, A10, A11).

In this operation example, the time required for the operation steps A3 and A7 is about 1/10 of the operation steps D3 and D7 in the conventional operation example shown in FIG. The time can be extremely shortened.

[Embodiment 2] Another embodiment of the present invention will be described below with reference to FIGS. 3 and 7. For convenience of explanation, members having the same functions as the members described in the drawings of the first embodiment will be designated by the same reference numerals, and the description thereof will be omitted.

Since the configuration of the channel selection device 1 is the same as that of the first embodiment, another operation of the microcomputer 5 will be described with reference to the flow chart shown in FIG.

That is, waiting for the button to be pressed (S1
8), when the button is pressed, the button is the forward button 8
It is determined whether or not (S19).

If the pushed button is the forward feed button 8, it is determined whether or not the reverse feed button 9 is also pushed (S20).

When the two buttons are pressed at the same time, it is determined whether or not the channel number (ch) indicates a VHF band channel (S21).

At S21, the channel number is VHF.
When showing a band channel (1 ≤ ch ≤ 12)
Selects a UHF band channel by setting the channel number to 13 (S22). When the channel number does not indicate a VHF band channel, sets the channel number to 1 and selects the VHF band channel (S2).
3).

In this embodiment, 13 channels are selected as the first channel when the UHF band is selected, and V
For example, one channel is selected as the first channel in the HF band, but other channel numbers may be selected in each band.

Next, the data of the channel number is sent to the tuner 3 and the channel number display portion 6 (S24), and then the process returns to S18 and waits until the next button is pressed.

In S20, when the reverse feed button 9 is not pushed, only the forward feed button 8 is pushed. At this time, in the following steps S25 to S30, the same processing as S3 to S8 in the above-described first embodiment is performed, and it is determined whether or not the forward button 8 is continuously pressed after the channel number is forwarded by 1 step.

When it is determined in S28 that the forward button 8 has not been pressed, the process returns to S18 and waits until the next button is pressed.

In S30, when t is larger than T, the process returns to S25, and the processing when the forward feed button 8 is continuously pressed is performed. As a result, when the forward feed button 8 is held down, the channel numbers are forwarded by one at intervals of time T.

In S19, if the pressed button is not the forward button 8, it is determined whether the pressed button is the reverse button 9 (S31). If the pressed button is not the reverse button 9, the process returns to S18 and waits until the next button is pressed.

If it is the reverse feed button 9, the reverse feed button 9
Only will be pressed. At this time, in the following steps S32 to S37, the same processing as in steps S11 to S16 in the above-described first embodiment is performed, and it is determined whether or not the reverse feed button 9 is continuously pressed after the channel number is reversely fed by one. judge.

If it is determined in S35 that the reverse button 9 has not been pressed, the process returns to S18 and waits until the next button is pressed.

In S37, when t is larger than T, the process returns to S32, and the processing when the reverse feed button 9 is continuously pressed is performed. As a result, when the reverse feed button 9 is pressed continuously, the channel number is fed back by 1 at intervals of time T.

As described above, in the channel selecting device having the two buttons, the forward feed button 8 and the reverse feed button 9, by pressing the two buttons at the same time, the channel number indicating the band different from the band currently being viewed is displayed. You can choose.

In the present embodiment, the band is switched by simultaneously pressing the forward button 8 and the backward button 9 as the buttons for operating the channel numbers, but the present invention is limited to these combinations. It is not a thing but, for example, a button that advances the channel number 10th and a button that moves the channel number 1st order 2
Bands may be switched by simultaneously pressing two other buttons, such as one button.

As a result, it is not necessary to separately provide a button for switching the band. When switching between bands, you often change the channel at the same time, but during these operations, you can switch between bands and operate the channel numbers without releasing your hand from the channel operation buttons, so operability is improved. improves.

In this embodiment, each time the forward feed button 8 or the reverse feed button 9 is pressed for less than the time T,
When the channel numbers are forwarded or reversely fed one by one and kept pressed for a certain time T or more, the channel numbers are forwarded or reversed one by one continuously at intervals of time T.

However, the present invention is not limited to this, and it is also possible to forward or reverse by 10 channels, for example, by pressing the button continuously.

Further, in the present embodiment, the VHF band and the UHF band are selected as the bands that can be switched, but the present invention is not limited to this. For example, satellite broadcasting such as BS broadcasting and CS broadcasting, and cable TV such as CATV can be used by the tuner. You may switch to these if you can select a channel.

Next, the relationship between the button operation and the selected channel in this embodiment will be described with reference to the operation example shown in FIG.

That is, when watching channel 36 in the UHF band (operation step B1), the forward button 8
When the and reverse feed buttons 9 are pressed simultaneously, channel 1 in the VHF band is selected (operation step B
2).

Further, if only the forward feed button 8 is kept pressed, the channel numbers are forwarded one by one at intervals of time T.
If you stop pressing the button, the channel numbers will not be progressive. Here, it is assumed that the process is stopped at 8 (operation step B
3). Then, the forward button 8 is pressed twice to set the channel number to the target value of 10 (operation steps B4 and B5).

Next, when the forward feed button 8 and the reverse feed button 9 are simultaneously pressed when the channel 10 of the VHF band is selected, the channel 13 of the UHF band is selected (operation step B6).

Then, if only the forward feed button 8 is continuously pressed, the channel numbers are forwarded one by one at intervals of time T.
If you stop pressing the button at the appropriate place, the channel numbers will not be forwarded. Here, it is assumed that the process is stopped at channel 34 (operation step B7).

Further, the forward feed button 8 is pressed twice to select the target channel 36 (operation steps B8 and B).
9).

As described above, it is possible to reduce the time and operation required when selecting a channel in a band different from the band of the channel currently being viewed.

When the bands are switched between the UHF band and the VHF band, the time and operation required for band switching between the two can be reduced.
Further, the band can be surely switched between the two without accidentally switching to another band.

[Third Embodiment] The following description will explain still another embodiment of the present invention with reference to FIGS. 5 and 7. For convenience of explanation, members having the same functions as the members described in the drawings of the first embodiment will be designated by the same reference numerals, and the description thereof will be omitted.

In this embodiment, as the channel number operation button 7 shown in FIG. 7A, 1 as shown in FIG. 7C is used.
It has a zero-order forward button 10 (a button for operating the tenth position of the channel number) and a one-position forward button 11 (a button for operating the first position of the channel number). The configuration other than the channel operation button is as described in the first embodiment.

In this embodiment, the 10th forward buttons 10 and 1 are used.
Although the order feed button 11 has the same size, one of them may be made larger than the other so that they can be easily distinguished.

Here, the operation of the microcomputer 5 in this embodiment will be described with reference to the flowchart shown in FIG.

First, wait for the button to be pressed (S3
8) When the button is pressed, it is determined whether or not the button is the 10th forward button 10 (S39).

If the button pressed in S39 is the 10th forward button 10, the channel number is forwarded by 10 (S40), and the channel number data is stored in the tuner 3.
And to the channel number display section 6 (S41).

Next, the counter t is set to 0 in order to measure the time (S42), and then it is determined whether or not the tenth-order forward button 10 is continuously pressed (S43). If it is kept pressed, t is incremented by 1 (S44), and it is checked whether t is longer than a predetermined time T (S45).
When t is smaller than T, S43 and subsequent steps are repeated until the tenth forward button 10 is continuously pressed for the time T or more.

When t becomes larger than T in S45, the process returns to S40 and the processing when the tenth forward button 10 is continuously pressed is performed. As a result, while the tenth-order forward button 10 is continuously pressed, the channel numbers are forwarded by 10 at intervals of time T.

In S43, the 10th forward button 10
If it is detected that is not pressed, the process returns to S38 and waits until the next button is pressed.

In S39, the pressed button is 1
If it is not the 0th forward button 10, it is determined whether or not the pressed button is the 1st forward button 11 (S46).
If the pressed button is not the first forward button 11, S
Return to 38 and wait for the next button press.

When the 1st place forward button 11 is pressed, the channel number is forwarded one by one (S47), and the channel number data is displayed on the tuner 3 and the channel number display section 6.
(S48).

Next, the counter t is set to 0 to measure the time (S49), and then it is determined whether or not the 1st-order forward button 11 is continuously pressed (S50). If the button is kept pressed, t is incremented by 1 (S51), and it is checked whether t is longer than a predetermined time T (S52). t
When is smaller than T, S50 and subsequent steps are repeated until the first-order feed button 11 is continuously pressed for a time T or more.

When t becomes larger than T in S52, the process returns to S47, and the processing when the first-order forward button 11 is continuously pressed is performed. As a result, the channel number is forwarded by one at intervals of time T while the first-order forward button 11 is kept pressed.

If it is detected in S50 that the first-order feed button 11 is not pressed, the process returns to S38 and waits until the next button is pressed.

By the operation of the microcomputer 5 in this way, each time the tenth-order forward button 10 is pressed for a time shorter than the time T, the channel number is forwarded by 10 channels. Further, when the 10th forward button 10 is kept pressed for the time T or more, the channel number is 1 at the interval of the time T.
It is advanced by 0. On the other hand, each time the first-order forward button 11 is pressed for less than the time T, the channel number is forwarded by one, and when the first-order forward button 11 is continuously pressed for the time T or more, the channel number is forwarded by one at intervals of the time T. It As a result, the 10th and 1st channel numbers can be operated independently.

In this embodiment, the 10th forward button 1
Although the 0 and 1st-order forward buttons 11 are provided, the combination is not limited to this, and the combination of the 10th-position reverse feed button and the 1st-position reverse feed button can be used for other channel numbers 1.
It may be a combination of a button for operating the 0th place and a button for operating the 1st place of the channel number.

Next, in the present embodiment, the relationship between the button operation and the selected channel will be described with reference to the operation example shown in FIG. Here, an example is given in which 55 channels are selected while viewing 10 channels, and then 10 channels are selected.

That is, in a state where 10 channels are selected (operation step C1), if the tenth forward button 10 is continuously pressed, the channel numbers are forwarded by 10 at intervals of time T.・ ・ It becomes.
If you stop pressing the button, the channel numbers will not be forwarded. Here, it is assumed that the channel 50 is stopped (operation step C2).

Then, the channel number is set to the target value of 55 by continuing to press the 1st-order forward button 11 and then stopping the pressing at an appropriate time (operation step C3).

Next, if the tenth-order forward button 10 is continuously pressed while channel 55 is selected, the channel numbers become 65.75.85.955.5. When you stop pressing the button, the channel numbers are no longer forwarded. Here, it is assumed that channel 15 is stopped (operation step C4).

After that, the first-order forward button 11 is kept pressed for an appropriate period to set the channel number to the target value of 10 (operation step C5).

In this operation example, the time required for operation steps C2 and C4 is shorter than the operation steps D3 and D7 in the operation example of the conventional example shown in FIG. 9 described above.

[0126]

As described above, the channel tuning apparatus according to the invention of claim 1 sets the channel numbers by sequentially feeding a plurality of channels when the button for feeding the channel numbers is continuously pressed. When the button for reverse-feeding is held down, a channel number setting means for reverse-feeding a plurality of channels and setting a channel number is provided.

As a result, it is possible to reduce the time and operation required for the operation of selecting a channel, as compared with the case where the channel is continuously forwarded or reversely fed one channel at a time.

Further, when the channel numbers are continuously changed, the time and operation required for the operation can be reduced without shortening the time interval for changing the channel numbers. As a result, it is easy to stop changing the channel number at a desired position while continuously changing the channel number, and when trying to increase / decrease each channel, a plurality of channels are increased / decreased all at once. There is no such thing.
Furthermore, it is easy to view the channel that is being increased or decreased on a television or the like, and it is possible to select the channel by analogizing the channel number according to the content of the broadcast.

In addition, it is not necessary to increase the number of buttons for operating the channels.

Thus, there is an effect that the operation and time for selecting a channel can be reduced while holding the operation unit which is easy to understand and operate.

Further, the channel selecting apparatus according to the invention of claim 2 is configured such that the number of the plurality of channels is 10.

1 because the channel number changes by 10
Only the tenth digit in the 0-base display will change, and it is easy to predict the next changing channel number.

As a result, in addition to the effect of the first aspect of the invention, the operability is further improved.

The channel selecting apparatus according to the third aspect of the present invention comprises band switching means for switching the selected band to another band when the plurality of buttons are simultaneously pressed. .

As a result, it is not necessary to separately provide a button for switching the band, and the operating section can be simplified.
In addition, when the operation of switching the band and the operation of changing the channel number are performed successively, the operation can be performed without releasing the button for operating the channel, so that the operability is improved.

In addition, the time and operation required for selecting a channel in a band different from the band of the channel currently being viewed can be reduced.

Thus, the effect of further simplifying the operation unit, the effect of improving the operability, and the effect of being able to select an arbitrary channel in a short time are obtained together.

According to a fourth aspect of the present invention, there is provided the channel selecting device according to the third aspect of the present invention, wherein the band switching means switches between the UHF band and the VHF band.

Therefore, the operation and time required for the most frequent band switching between the UHF band and the VHF band can be reduced, and at that time, the band can be reliably switched.

As a result, in addition to the effect of the third aspect of the invention, the effect of further improving the operability and the effect of being able to select an arbitrary channel in a shorter time can be obtained together.

Further, the channel selecting apparatus according to the invention of claim 5 has a button for operating the tenth position of the channel number and a button for operating the first position of the channel number provided independently of the button. When the button to operate the 10th position of the channel number is pressed, the channel number 1
There is provided a channel number setting means for changing the digit of 0 to set the channel number and changing the digit of the channel number to set the channel number when a button for operating the digit of the channel number is pressed. It is a composition.

As a result, the 1st and 10th channel numbers can be operated independently. That is, since the tenth place of the channel number can be changed, the time and operation required for channel selection can be reduced as compared with the conventional case where the channel number is continuously changed by one.

Further, as in the channel selecting apparatus according to the invention of claim 2, whether the first digit of the channel number changes or not
Whether the 0th position changes is not distinguished by the time of pressing the button, but by which of the independent buttons is pressed. Therefore, it is possible to operate without worrying about the time to press the button.

In this way, the time and operation required for channel selection can be reduced without complicating the operating section. In addition, when the button is operated slowly, in the channel tuning device according to the invention of claim 2, the tenth position of the channel number may be undesirably changed even if the first position of the channel number is operated. However, in the case of the channel selection device according to the invention of claim 5, there is an effect that a desired position of the channel number can be operated.

[Brief description of drawings]

FIG. 1 is a flowchart showing an example of a channel tuning operation in a channel tuning device according to the present invention.

FIG. 2 is an explanatory diagram showing an operation example at the time of channel selection by a forward feed button and a reverse feed button provided in the channel selection device.

FIG. 3 is a flowchart showing a channel selecting operation and a band switching operation as another embodiment of the channel selecting apparatus.

FIG. 4 is an explanatory diagram showing an example of a channel selection operation and a band switching operation by a forward feed button and a reverse feed button provided in the channel selection device.

FIG. 5 is a flow chart showing a channel selection operation by a 10th place forward button and a 1st place forward button as still another embodiment of the above channel selecting device.

FIG. 6 is an explanatory diagram showing an operation example at the time of channel selection by a 10th place forward button and a 1st place forward button provided in the channel selection device.

FIG. 7 shows an embodiment of the present invention, (a)
Is an explanatory view showing a configuration of a main part of the channel selection device,
(B), (c) is explanatory drawing which shows the structural example of a channel number operation button.

FIG. 8 is a flowchart showing a conventional channel selection operation.

FIG. 9 is an explanatory diagram showing an operation example of a conventional channel selection.

[Explanation of symbols]

1 channel selection device 5 microcomputer (channel number setting means;
Band switching means) 7 Channel number operation button 8 Forward button (button to forward channel numbers) 9 Reverse button (button to reverse channel numbers) 10 10th forward button (button to operate 10th of channel number) 11 1st forward button (button to operate 1st of channel number)

Claims (5)

[Claims] 1. A channel tuning apparatus having a button for sequentially feeding a channel number and a button for reversing a channel number, and when the button for sequentially feeding the channel number is continuously pressed, the channel numbers are forwarded by a plurality of channels. And a channel number setting means for reversely feeding a plurality of channels to set the channel number when the button for backward feeding the channel number is continuously pressed. 2. The channel selection device according to claim 1, wherein the number of the plurality of channels is 10. 3. A channel selection device having a plurality of buttons for operating a channel number, comprising band switching means for switching a selected band to another band when the plurality of buttons are simultaneously pressed. Channel selection device characterized in that 4. UHF by said band switching means
4. The channel tuning device according to claim 3, wherein the band and the VHF band are switched to each other. 5. A channel selection device having a button for operating a channel number, having a button for operating the tenth position of the channel number and a button for operating the first position of the channel number provided independently thereof. However, when the button for operating the tenth place of the channel number is pressed, the tenth place of the channel number is changed to set the channel number, and when the button for operating the first place of the channel number is pressed, the channel number is changed to one. A channel selection device comprising a channel number setting means for changing the position of and the channel number.